RE: HOVERING RATIO???
A thrust calculator will tell you what ammount of thrust your prop is pulling at a given RPm. As for hovering, it's pretty self explanitory. If yopu have a 10 pound plane, you will need at least 11 pounds of static thrust to hover and barely pull out. Most try to keep the thrust to weight ratio around 1.5:1 and that would be very effective. Then, there are others that want more than effective and won't concider anything lower than 3:1.
For instance, my Ultimate weighs in at 8.5 pounds. I have an ASP 1.08 on the nose. Spinning a 16X6W prop 11,000 RPMs will give me around 23 pounds of static thrust. To hover this plane and pull out effectively, I would only need about 13 pounds of thrust.
You can find prop static thrust calculators all over the internet.